Multiplier.



WQPLATT.

MULTIPLIER.

APPLICATION FILED OCT. 1. 1912.

Patented Oct. 29, 1918.

amen.

WALTER PLATT, OF SABATTUS, MAINE, ASSIGNOR TO CROMP'ION & KNOWLES LOOM WORK-S, OF'WORCESTER, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS.

' MULTIPLIER.

l '0 all whom it may concern:

Be it known that I, WALTER PLA'IT, a citizen of the United Stat-es, residing at Sabattus, in the county of Androscoggin and State of Maine, have inventedra new and useful Multiplier, of which the following is a specification. i V

This invention relates to certain improvements in a multiplier, which maybe of the general type shown in the prior patent to VVattie, No. 586,374, issued July 13, 1897. i In multipliers of this type the drop box mechanism is jointly controlled by at least two separate pattern mechanisms, either one of which is effective to furnish the desired control. 7

' In the multiplier shown in the Wattie patent, however, it is necessary to stop each pattern mechanism in a particular position in order that the other pattern mechanism may thereafter freely control the drop boxes.

a construction in which one of the pattern mechanisms may be rendered inoperative in any position thereof, thereby placing the control entirely in the other pattern mecha- 'nism. V c In the preferred form of my invention, this is accomplished by disabling the connection between the drop box mechanism and the selected indicator lever.

My invention further relates to arrangements and combinations of parts hereinafter described and more particularly pointed out in the appended claims.

A preferred form of my invention is shown in the drawings, in which Figure 1 is a side elevation of a portion of a multiplier with my improvement embodied therein;

Fig. 2 is a partial side elevation, showing certain parts in a different position, and

Fig. 3 is a detail sectional view taken along the line 3-3 in Fig. 1.

Referring.,to the drawings, I have shown a multiplier frame 10 upon which are rotatably mounted pattern chains 11 and 12 which control indicator levers 13 and 14. The levers 13 and 14: are jointly connected by links 15 and 16, a clamp 22, and a rod 23, to drop box mechanism (not shown). The pattern chains are actuated by any suitable mechanism, such for instance as is shownin the patent to Wattie above referred to. The

Specification of Letters Patent.

Patented Oct. 29, 1918.

Application filed October 1, 1917. Serial No. 194,099.

parts thus far described may be of the usual. type, and form no part of my invention.

As the links 15 and 16 are connected to move together, it will be seen that either incheating lever 13 or 1 1 may be used to raise the links and rod, and thus control the drop box mechanism. If the levers are both of the type of the lever 13, each of these levers can control the drop box mechanism only when the other lever is in its lowest position, occasioned by the absence of a pattern roll, and it is thus necessary to stop each pattern chain with a blank under its indicating lever in order to permit the other lever to control the drop box mechanism. This construction places certain limitations upon the possible uses of the apparatus and to avoid such limitations I have provided a construction, by the use of which I avoid the necessity of stopping the pattern chain in any particular position. It is theobject of my invention to provide 1 tioned by a bell crank 17 pivoted at 18 to a bracket 19 secured to the frame 10. One arm 17 of the bell crank 17 is arranged for en gagement with a special series of rolls upon the pattern chain 11. A second arm 17 of the bell crank is provided with pins 20 engaging opposite sides of the link 16.

When the arm 17 rests upon a pattern roll, the pins 20 hold the link 16 upon the operative portion 11 of the indicating lever 14. When, however, there is no pattern roll under the arm 17, a spring 21 swings the bell ciunk 17 so as to move the slotted end of the link 16 to the inoperative or depressed portion 14" of the lever 11. This portion is depressed to a sufficient extent so that the links 15 and 16 may be raised and lowered by the lever 13, regardless of the position of the lever 11. When a pattern roll again comes under the arm 17 the bell crank will be moved in the opposite direction and the link 16 will be moved along the cam portion 14: to its original position upon the operating portion 148 of the lever 11. I are thus able to render the lever operativo or inoperative, regardless of the position of the pattern chain.

In the practical operation of the machine, this is found to permit a substantial simplitying of the pattern chains necessary to produce certain desired results, as it is not necessary to stop the chain 12 in any particular position in order to permit the chain 11 and lever 13 llO CODlilTOli the drop-box mechanism.

Having thus described my invention, it will. be evident that ehanges and modifications may be made therein by those skilled in the art without departing from the spirit and scope of. my invention as set forth in the claims, and I do not Wish tobe otherwise limited to the details herein shown, but what I claim :is

1. In a. loom having a drop box mechanism, a multiplier, comprising a pair of indicating levers jointly controlling said drop box mechanism, pattern mechanism for actuating each lever, and pattern-controlled means effective to selectively render one of said levers either operative or inoperative, as desired, in any position of its pattern mechanism.

2. In a loom. having a drop box mechanism, a multiplier, comprising tWo separate Jattern mechanisms jointly controlling said crop box mechanism, and means torender one of said pattern mechanisms inoperative in any position thereof, said means being under the control of the other pattern mech anism. I

3. In a loom having a drop box mechanism, a multiplier, comprising lJWO separate pattern mechanisms jointly controlling said drop box mechanism, connections from said drop box mechanism to said patter-n mechanisms, and pattern-controlled means efiective to disable the connection; toone of said pattern mechanisms in any positionthereof.

4. In a loom having a drop box mechanism, a multiplier, comprising tWo separate pattern mechanisms jointly controlling said drop box mechanism, connections from said drop box mechanism to said pattern mechanisms, and means controlled by one of said pattern mechanisms effective to disable the connection to the other pattern mechanism in any position thereof.

5. In a loom having a drop box mechanism, a multiplier, comprising two pat tern chains, an indicating lever controlled by each chain, said drop box mechanismbeingjointly controlled by said. levers, and a device controlled by one pattern chain and effective to render inoperative the indicating leverassociatedwith the other pattern chain in all positions ofsaid chain and lever.

6. In a multiplier, anindicating lever, a connection, means to position said connection on two different. portions of said-indieating lever, and means to move saidco-nneetion from one portion of said; lever to the other.

7 In a multiplier, an indicatinglever, a connectlon, means to position said connection on tWo diflerent' portions of said indicating lever, and means to move saidconnection fromone portion. of said leverto the other, said meansbeing pattern-controlled.

In testimony whereof I have hereunto affixed my signature.

' WALTER PLATT.

Copies of thispatent may be obtained for five cents each, by addressing the Commissioner of- Patents.

Washington, D. 0 

